JPS6223273A - Picture processing device - Google Patents

Abstract

PURPOSE:To relieve complicated trouble such as further copying and turning over of paper by applying reading or recording of a picture on both sides of the paper. CONSTITUTION:After picture processing being either read or record onto one side of paper 3, the paper 3 is drawn toward the feeding supply side once by a re-feeding roller 60 and the paper 3 is fed again between platens 1, 2 and a shuttle type head 5 from the tail end of the paper 3. Thus, the paper 3 is turned over, the reading or recording to the rear side is attained again to apply read or record processing to both sides of the paper 3. Thus, in sending the paper on both sides of which are printed, it is not required for the operator to turn over the paper or to make a further copy and then waste of copying paper is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Industrial Application Field] The present invention relates to an image processing apparatus, and more particularly to an image processing apparatus that suitably performs reading and/or recording on both sides of a sheet.

[Prior Art] Image processing devices that perform image processing such as reading images written on paper or recording images on paper are widely used as printers, image scanners, facsimile machines, etc. The apparatus is provided with a means for feeding sheets to a means for performing image processing, and is configured to sequentially perform image processing on one of the fed sheets.

[Problems to be Solved by the Invention] Such image processing devices usually have only one path for feeding and ejecting paper to and from the image processing means, and it is difficult to read an image written on one side of the paper or to read an image written on one side of the paper. All I could do was record what was going on.

Therefore, when reading a sheet of paper printed on both sides,
The user had to go through the trouble of turning the paper over each time. This can be a particular problem when a plurality of sheets of paper are read and transmitted in succession, such as in a facsimile machine.

In reality, it is often the case that both sides of a sheet of paper are once copied and then sent to an image processing device such as a facsimile machine. However, in this case, there is a problem in that copying time and copying paper are wasted. On the other hand, since it is not possible to record on both sides, there is also the problem that paper, filling, etc. are wasted.

Therefore, it has been proposed to provide reading means and recording means for each side of the paper being fed, and to perform reading and recording on both sides. Since another set of means is required, there are problems in that the device configuration becomes complicated and the reliability decreases.

The present invention has been made to solve these problems and to provide an image processing apparatus that performs image processing on both sides of a sheet of paper with a simple configuration.

Structure of the Invention [Means for Solving the Problems] In order to achieve the above object, the present invention has the following structure as a means for solving the problems. That is, it includes an image processing means for reading an image written on a sheet of paper and/or recording the image on the sheet, and a paper feeding means for feeding the sheet to the image processing means. In an image processing device that performs image processing including recording and recording, the device is installed in the conveyance path of paper after reading or recording by the image processing means, and the conveyance direction of the paper after image processing is set to the paper discharge direction. and a feeding direction switching means 110 for switching the paper to a reprocessing direction different from the ejection direction; a re-feeding unit that feeds the paper that has been removed to the image processing unit again; and a re-feeding unit that feeds the paper that has been removed to the image processing unit again; The direction switching means is switched to the reprocessing direction, and after image processing, the refeeding means is controlled by 1tll to refeed the paper and perform reading or recording again, and the reading or recording on another side of the paper is performed. This is the structure of an image processing apparatus characterized in that it includes a double-sided processing control means that switches the conveyance direction switching means to the ejection direction when recording is completed.

[Function] When the image processing apparatus of the present invention having the above configuration is set to perform image processing such as reading, shifting, and recording on both sides of a sheet, the conveying direction switching means is switched to the reprocessing direction, The paper after the image processing is pulled out to a predetermined position on the paper feeding side by the re-feeding means and re-feeded to the image processing means again, and the other side of the paper which has been read or recorded on one side is read or recorded. The machine will record again and then eject the paper.

In other words, the same image processing such as reading or recording performed on one side of the paper is performed on the other side, thereby performing image processing on both sides.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a perspective view showing a schematic configuration of a hook-and-shape device as an embodiment of an image processing device according to the present invention.

As shown in the figure, the facsimile machine of this embodiment is equipped with a platen 1 and a flat platen 2, and paper 3 is fed between these platens 1, 2 and a shuttle type head 5. In this facsimile machine, an electronic control device 10 controls a shuttle drive device 7 that reciprocates the shuttle type head 5 in the width direction of the paper 3 and a paper feed device 9 that conveys the paper 3. It is configured to read the image written on the paper 3 and print the image on the paper 3 individually by driving and transporting the paper 3.

The shuttle-type head 5 is movably supported by a guide shaft 11, and the end face of the optical fiber OF is exposed at the upper part of the shuttle-type head 5a facing the platen 1.
i (i=1 to 54). Also, this surface 5a
A heat sink 12 is attached to the lower part of the heat sink 12.
A printed portion 14 of a ceramic substrate on which a heating element of a thick film resistor is disposed is provided on the guide shaft 11 in the axial direction thereof. By energizing the printing unit 14 and generating heat, an image is recorded on the thermal paper.

The optical fiber OF is disposed under the cover 5b, and includes a light-emitting side fiber that transmits light from a light-emitting element installed in the reading circuit 17 to each reading section RDi, and a light-emitting side fiber that transmits light from a light-emitting element installed in the reading circuit 17, and a paper 3 or flat platen 2. It is formed as a pair with a light-receiving fiber that transmits the reflected light from the light to the light-receiving element in the reading circuit 17. Reading circuit 17 and printing section 1 of ceramic substrate
4 is connected to the electronic control device 10. The printing section 14 provided with a heating element is fixed to the shuttle-type head 5 via a heat sink 12.

One end of the plate 12 is formed to extend in the direction of the cam 20 of the shuttle drive device 7, and a cam follower 22 that loosely fits into the cam groove 20a of the cam 20 is provided at the tip thereof. The cam 20 is rotated by a DC motor 27 with a slit plate 24 acting as an encoder. Here, the cam 20 has a substantially circular shape, and its center is at DC
Since the cam follower 22 is mounted eccentrically by about 2.5 mm from the shaft center of the motor 27, the cam follower 22, which is left loose in the cam groove 20a, reciprocates as the cam 20 rotates and is supported by the guide shaft 11. The shuttle type head 5 is approximately 5m long.
Move back and forth with a width of m.

The slit plate 24 works as an encoder together with a photointerrupter 34 arranged so as to straddle the slit plate 24, and is essential for detecting the reading position and printing position caused by the reciprocating movement of the shuttle type head 5. Ru. Since the shuttle type head 5 reciprocates, it is configured to detect the reading position or printing position in each of the forward and backward movements, and read or print the image on the paper 3.

Next, the structure and function of the paper feed device 9 that conveys and refeeds the paper 3 will be explained. The paper feeding device 9 is configured using a stepping motor 41 as a driving source, and this rotational force is transmitted from a motor pulley 42 to a toothed pulley 45 via a timing belt 43. A main gear 48 is provided on the toothed pulley 45 coaxially with its rotation (1147), and an oscillating gear 50 meshes with the main gear 48. Switching solenoid 52
The rotation of the main gear 48 is transmitted to one of the auxiliary gears 53 to 54 by being driven by the main gear 48 . The auxiliary gear 53 transmits rotation to the auxiliary gear 55, and the auxiliary gear 54 transmits rotation to the auxiliary gear 55 via another auxiliary gear 56. Therefore, by switching the oscillating gear 50 with the switching solenoid 52, the rotation direction of the secondary gear 55 can be switched while the platen 1 remains rotated in the direction of transporting the paper 3 (in the direction of the arrow in FIG. 1). The rotation direction of the refeed roller 60 provided on the rotation shaft of the auxiliary gear 55 and the pressing roller 62 opposing the refeed roller 60 can also be switched. On the other hand, the paper feed roller 64 provided on the rotating shaft of the auxiliary gear 53 and the presser roller 66 opposed thereto are rotated in one direction only when the oscillating gear 50 and the auxiliary gear 53 are engaged with each other.
is fixed on the paper guide plate 68 and conveyed.

The configuration of the switching solenoid 70 and the switching plate 72 that rotates approximately 60 degrees in the directions of arrows C and D in FIG. It acts as a conveyance direction switching means to switch the conveyance direction.

Next, the configuration of the electronic control device 10 and the control performed by the electronic control device 10 will be explained. FIG. 2 is a block diagram showing the electrical system of this embodiment, centering on the electronic control device 10.

As shown in the figure, the electronic control device 10 is a well-known CPU 100.
．． ROM102. Input/output circuits centered around RAM104 etc.
It is configured as a logic operation circuit together with the board, and the rear j
control is executed according to a predetermined program.

The input/output circuit/board is a serial I10 that exchanges data with an external communication line via the connector 105.
boat (SIO) 107, an illumination drive circuit 109 that outputs data corresponding to the amount of light emitted as a control signal to the light emitting element of the reading circuit 17 of the shuttle-type head 5, and a control signal corresponding to the intensity of the reflected light detected by the light receiving element of the reading circuit 17. data capos 1 to 111 that receive the data, a print data output port 113 that outputs print data that drives the heating element of the printing unit 14 of the shuttle head 5, and a reciprocating movement of the shuttle head 5 and conveyance of paper. DC motor 27. A motor drive circuit 115 outputs a control signal to control the stepping motor 41, and a pulse pano port 1-117 serves as an encoder for the reciprocating motion of the shuttle-type head 5.
, a solenoid drive circuit 119 that outputs a signal to drive each of the switching solenoids 52 and 70, and the like. In addition, these input/output circuits, port 1~ and CPU100. ROM102
etc. are interconnected via a common bus 120.

After the electronic control unit 10 is powered on and performs initialization processing, such as clearing the internal register of the CPU 100 and resetting the value of the flag [R] to zero, Repeatedly execute the control routine shown. still,
Prior to this control routine, a determination is made as to whether the mode is double-sided processing mode or single-sided processing mode, based on the settings of, for example, a switch on an operation panel (not shown). A duplex processing control routine to be executed is shown.

First, in step 200, an operation mode is determined. Until the document to be read is inserted into the facsimile machine and the reading mode is selected, or the printing mode is selected to record the image by receiving image data from an external device via a communication line, The process of step 200 is repeated. When the original (paper) 3 is loaded and the reading mode is selected, the process proceeds to step 210, where it is determined whether the value of the flag FR is ◯. Immediately after the start of the water control routine, the value FR of the flag is reset to 0, so the decision to open step 210 is rYFsj, and the process proceeds to step 220. In step 220, the value of the flag FR is set to 1, followed by step 230.
A read operation is performed.

Here, the switching plate 72 is switched by the switching solenoid 70 in the direction of the arrow in FIGS. 1 and 2 (refeeding direction), and the swinging gear 50 is driven by the switching solenoid 52 so as to mesh with the auxiliary gear 53. Therefore, the stepping motor 4
1, the paper 3 is moved by the paper feed roller 64. Platen 1 and 2° conveyance kite plate 771. Lower surface of switching plate 72, refeed roller 60. They are fed in this order. At the same time, avoid rotating the DC motor 27 and reciprocate the shifter type △ and RAD 5.
By illuminating the paper 3 through the optical fiber OF, the image on the paper 3 is read as black and white binary data from the intensity of the reflected light, and after reading one line of data, the communication line The process of sending the data to the outside via is repeated.

Figure 4 (A) shows how paper 3 is fed at this time.
child .

In this way, the reading operation by the paper head 5 progresses, and when the paper 3 passes the rear end of the paper 3 or the reading section RDi, the electronic control device detects the light reflected by the flat platen 2. 10 can easily know the trailing edge of the paper 3, so after conveying the paper 3 by a predetermined amount, the rotation of the stepping motor 41 is stopped (Fig. 4 (B)), and the above-mentioned The reading operation is completed, and the process returns to step 2.
Return to 00.

Next, when the determination in step 210 is made, since the flag FR has been set to the value 1 in step 220, the process proceeds to step 240, where a refeeding operation is performed. Here, the switching plate 72 is
The switching solenoid 70 is used to switch to the C direction (discharge direction) in FIGS. When the stepping motor 41 starts rotating in this manner, the refeed roller 60 rotates in the opposite direction from the front, and the paper 3 is fed from the rear end, that is, turned upside down, again to the entrance side of the platen 1 ( Figure 4(C)).

In step 250 following step 2410, the value of the flag is reset to O, and the process further proceeds to step 230 to repeat the read operation described above. The paper 3 conveyed between the platen 2 and the shuttle type head 5 is guided by the conveyance guide plate 7.
4, the conveyance direction is changed by the switching plate 72 switched in step 240, and the paper is discharged.

The above operation is performed until the reading operation for the back side of the paper 3 is completed (FIG. 4(D)).

After the reading operation is completed, the process returns to step 200, but at this time, the value of the flag FR, etc. has also returned to its initial value, so if the paper 3 is loaded, the i4
1" reading process is repeated from the beginning.

On the other hand, when image data is sent from another facsimile device or the like and the print mode is selected in the determination at step 200, the processes from step 215 onwards are executed. Steps 215 to 225 are steps 2
Except for step 35, the steps are the same as the reading processing steps 210 to 250 described above, so a detailed explanation will be omitted. In step 235, a recording operation using the printing section 14 is performed instead of the reading operation.

According to the facsimile apparatus of this embodiment configured as described above, after image processing of reading or recording is performed on one side of the paper 3, the paper 3 is once fed by the re-feeding roller 60. Then, the paper 3 is fed again between the platens 1 and 2 and the shuttle type head 5 from the rear end of the paper 3.

Therefore, at this time, the paper 3 is turned over, and reading or recording is performed on the back side again, and reading or recording processing is performed on both sides of the paper 3.

As a result, even when transmitting paper with printing on both sides, there is no need for the operator to turn over the paper or make copies each time, and no copy paper is wasted. Furthermore, since it is possible to record on both sides, there is no need for filing or waste of paper during reception.

In this embodiment, the auxiliary gear 50 is used to rotate the refeed roller 60 in both directions without changing the rotation direction of the platen 1 by the stepping motor 41. Moreover, when refeeding is performed, the paper feed roller 64, which is not involved in feeding the paper 3, is not rotated. Therefore, it is possible to efficiently refeed the paper 3 with a simple configuration.

In this embodiment, the paper 3 is re-fed from the rear end, but the paper transport path on the re-feed side formed by the transport direction switching means and the re-feeding means may be switched multiple times. , it is also possible to configure the paper 3 to be re-fed in the same direction as the normal feeding.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, the configuration of the above embodiment in which the paper conveyance path is the same for the reading operation and the recording operation Of course, the present invention can be implemented in various ways, such as a configuration in which different conveyance paths are used for the reading operation and the recording operation.

Effects of Two Birds As described above in detail, the image processing apparatus of the present invention has a simple configuration and has the excellent effect of being able to read or record images on both sides of a sheet of paper. Therefore, there is no need for frequent efforts such as copying or turning over the paper, and there is no waste of paper or filing. If the image processing apparatus of the present invention is used in a facsimile machine, these effects can be brought out to the fullest.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a facsimile machine as an embodiment of the present invention, FIG. 2 is a block diagram mainly showing the configuration of the electronic control device in the same embodiment, and FIG. 3 is a block diagram of the control performed in the embodiment. Flowchart 1-1 showing an example 4th
Figures (A), (B). (C) and (D) are explanatory diagrams each showing the paper feeding state in the embodiment. 1...Platen 2...Flat platen 3...
Paper 5...Shuttle type head 7...Shall drive device 9...Paper feed device 10...Electronic control device 11.
... Guide shaft 12 ... Heat sink 14 ... Printing section 20 ... Cam 22 ... Cam follower 24
...Slit plate 27...Dc motor 34...
Photo interrupter 41...Stepping motor 43...Timing belt 45...Toothed pulley 50...Obcillating gear 51...
・Switching axis

Claims (1)

[Scope of Claims] 1. An image processing device that reads an image written on a paper and/or records an image on the paper, and a paper feeding device that feeds the paper to the image processing device, and includes at least In an image processing device that performs image processing including reading and/or recording an image, a device is installed in the paper conveyance path after the image processing means has read or recorded the image, and indicates the conveyance direction of the paper after image processing has been completed. , a conveying direction switching means for switching between a sheet discharge direction and a reprocessing direction different from the sheet discharge direction; and pulling out the sheet conveyed in the reprocessing direction to a predetermined position on the paper feeding side with respect to the image processing means. With,
a refeeding means for feeding the pulled out paper to the image processing means again; and a refeeding means for reading or recording on one side of the paper when it is set to perform image processing on both sides of the paper. switching the conveyance direction switching means to the reprocessing direction and controlling the refeeding means to refeed the paper and read or record it again after image processing;
An image processing apparatus comprising: double-sided processing control means for switching the conveyance direction switching means to a discharge direction when the reading or recording on another side of the paper is completed.